News & Insights
Cowan, Liebowitz & Latman is Hosting a CLE About Recent Copyright Developments for In-House Counsel
Patent Law Alert--Supreme Court: Foreseeable Off‑Label Use of Skinny Labeled Generic Drugs Isn’t Enough for Induced Infringement Liability
Transgender Women in Law Mixer
The 2026 Edition is Available of A Trademark is Not a Copyright or a Patent by William M. Borchard with Deborah K. Squiers

Case Studies
Federal Circuit upholds successful opposition against application to register LEHMAN BROTHERS for whiskey
We succesfully represented our client, Major League Baseball Partners, Inc.
The Second Circuit affirms summary judgment for our client.
Federal Circuit reverses cancellation of U.S. trademark registrations
We established that cigarette rolling paper size designations are generic.
What They Say
“[Jonathan] King and [Richard] Mandel paired up to successfully defend non-profit Kars 4 Kids in a trademark appeal, overturning an $8 million disgorgement and injunction against America Can.”
2026 WTR 1000 – The World’s Leading Trademark ProfessionalsWith a career spanning more than 40 years, Mary Kevlin is a highly regarded trademark practitioner with extensive experience in contentious and non-contentious trademark matters. Her practice encompasses trademark enforcement, portfolio management and proceedings before the USPTO, reflecting deep knowledge of both domestic and international brand protection strategies.
2026 Lexology IndexTop brands rely on [Adam] Siegartel for strategic counsel on global brand management and representation in high-stakes disputes.
2026 WTR 1000 – The World’s Leading Trademark ProfessionalsWith more than 30 years of experience, Jonathan King handles a broad range of intellectual property disputes, with a particular focus on copyright litigation. His practice spans industries including music, healthcare and consumer products, and he has been involved in notable matters concerning digital copyright issues and the application of copyright law to emerging artificial intelligence technologies.
2026 Lexology IndexMaryann Licciardi is a well-regarded lawyer who specialises in trademark prosecution, litigation and portfolio management, advising clients on domestic and international matters. Her practice spans a broad range of industries, including sports and pharmaceuticals, and encompasses domain name disputes, contested proceedings and trademark enforcement.
2026 Lexology Index
Why Us
Founded in 1957, we maintain long-term relationships by providing sound advice, quality legal work, and highly-responsive, personalized service.
What We Do
We represent clients of all sizes across a broad range of industries. The boutique size of our firm, and the breadth of our practice capabilities, allow us to provide a multidisciplinary approach in a cost-effective manner.
Our Clients
Our experience spans a broad range of industries and is international in scope. We appreciate the opportunity of growing with successful companies and brands, as well as creative individuals and accomplished executives.









